Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）

“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）

The treatment of the fuel oils involves storage, heating, filtering and（）

Cold weather starting of a diesel engine may be made easier by（）

The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）

By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）

The cetane rating of diesel fuel is an indication of the （）

Diesel engine air start system check valves are opened by （）

When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish

To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）